Icon’s not showing properly

Hi, Both the icons on the sidebar and the sharing buttons in the footer of each post are not showing up properly(not sure if the second one is managed by this plugin). For my icons on the sidebar, all you can see is the background color. I’ve tried changing every color for both the background of the icon and the icon itself but the icons don’t show up against the background no matter the setting. The links are still working but you have no way of knowing what you’re pressing until you see where it takes you. I’ve tried deleting and reinstalling the plugin as well as reverting back to WordPress 5.2.5 (This plugin’s last tested version) but still not working.

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